Effect of the Age and Body Weight of the Broiler Breeders Male on the Presentation of Oxidative Stress and Its Correlation with the Quality of Testicular Parenchyma and Physiological Antioxidant Levels

Abstract

Chicken meat is a food of high nutritional quality; its production requires birds called broilers breeders and looking after all aspects that influence their reproductive capacity. An ongoing controversy exists among researchers related to the weight of the rooster and its fertilization capacity. By histological and biochemical tests, the association between weight and age with oxidant damage, testicular parenchyma and antioxidant capacity was evaluated in Ross 308 roosters. Testicular integrity was assessed by histological analysis, oxidative stress was determined by malondialdehyde content, non-enzymatic antioxidant capacity was determined by oxygen radical absorbance capacity assay and enzymatic antioxidant capacity through glutathione peroxidase, glutathione reductase and glutathione-S-transferase activities. Histological analysis showed vacuolization of the epithelium from the seminiferous tubules. A significant negative association was observed between malondialdehyde and the deterioration of the integrity of the seminiferous epithelium, as well as between age and integrity of the seminiferous epithelium. It became evident that oxidative damage directly affects the quality of testicular parenchyma. Weight and age were not associated with the antioxidant enzymes activities, but with non-enzymatic capacity. The data obtained suggest that weight is not the most important factor that influences the fertility of the rooster.

Sperm morphology and forward motility are indicators of reproductive success and are not age- or condition-dependent in a captive breeding population of endangered snake

“…However, we found no evidence that males with higher BCI produced higher quality semen. Investigations of body mass and reproduction have not always found male body mass to be an indicator of reproductive success (e.g., roosters, Gallus gallus, [69]). Clearly, the connection between individual body condition and ejaculate quality requires further investigation in reptiles as does the mechanisms driving variation in ejaculate traits of Louisiana pinesnakes.…”

Effect of Adding Different Levels of Aqueous Extract of Lemongrass Leaves on Reproductive Characteristics, Testis Weight and Testicular Tissues of Male Broiler Mothers ROSS308

“…The moral improvement is due to the role of the aqueous extract of lemongrass, which improves testicular growth due to the compounds in the leaves. There is a close relationship between the concentrations of the hormones of testicular weight, where if the concentration of hormones increases, the weight of the testicle increases, and the increase of the testicle lead to an increase in spermatozoa because hormones lead to the stimulation and synthesis of sperm [27] , [28] appeared their results about the effect of body weight on fertility the mothers of broilers and it was proved that bodyweight does not have a significant role in fertility and is not related to the activity of antioxidant enzymes, but age affects the integrity of the testicular cells significantly. It increases the semen characteristics of male broiler mothers, regardless of whether the collected semen was used fresh or after freezing [29,30], consequently, enhancing roosters' fertility through quercetin, reduction in lipid peroxidation, protection from oxidative damage and thus increased sperm count from PUFAs [31] , consequently, an increase in semen quantity, concentration, and quality characteristics including several live sperms and increased diameter The spermatic tubule and the thickness of the germ cell layer, and thus there was an increase in the biosynthesis of sperm that led to anti-oxidant enzymes and protection of the testes from oxidation and thus led to an increase in the weight of the testicles [32] .…”

Dynamic Changes in Lung Microbiota of Broilers in Response to Aging and Ammonia Stress

“…Long-term breeding of broilers primarily focuses on increasing the rate of muscle growth while ignoring other organ systems ( Escorcia et al, 2020 ). Excessive muscle growth causes a change in the lung/body ratio of affected animals ( Hassanzadeh et al, 2005 ), resulting in relatively small respiratory systems and increased susceptibility to infection, for example, in broilers.…”